/*
 * **** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * J4Care.
 * Portions created by the Initial Developer are Copyright (C) 2015-2019
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
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 * **** END LICENSE BLOCK *****
 *
 */

package org.dcm4chee.arc.conf;

import java.util.Optional;
import java.util.stream.Stream;

/**
 * @author Gunter Zeilinger (gunterze@protonmail.com)
 * @since Oct 2019
 */
public class MultipleStoreAssociations {
    final String value;
    final int index;
    final int max;

    MultipleStoreAssociations(String value) {
            try {
                this.value = value;
                index = value.indexOf(':');
                max = Integer.parseInt(value.substring(index + 1));
                if (index != 0 && max > 0) return;
            } catch (RuntimeException e) {}
            throw new IllegalArgumentException(value);
    }

    @Override
    public String toString() {
        return value;
    }

    static MultipleStoreAssociations[] of(String... ss) {
        return Stream.of(ss)
                .map(MultipleStoreAssociations::new)
                .sorted((a,b) -> a.index < 0
                        ? (b.index < 0 ? 0 : 1)
                        : (b.index < 0 ? -1 : 0))
                .toArray(MultipleStoreAssociations[]::new);
    }

    static int maxTo(String aet, MultipleStoreAssociations[] a, MultipleStoreAssociations[] b) {
        Optional<MultipleStoreAssociations> match =
                Stream.of(a, b)
                        .flatMap(Stream::of)
                        .filter(x -> x.match(aet))
                        .findFirst();
        return match.isPresent() ? match.get().max : 1;
    }

    boolean match(String aet) {
        return this.index < 0 || this.value.startsWith(aet) && aet.length() == index;
    }
}
